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Comparison of evolutionary rates in the mitochondrial DNA cytochrome b gene and control region and their implications for phylogeny of the Cobitoidea (Teleostei: Cypriniformes).
Mol Phylogenet Evol. 2006 May; 39(2):347-57.MP

Abstract

It is widely accepted that mitochondrial DNA (mtDNA) control region evolves faster than protein encoding genes with few exceptions. In the present study, we sequenced the mitochondrial cytochrome b gene (cyt b) and control region (CR) and compared their rates in 93 specimens representing 67 species of loaches and some related taxa in the Cobitoidea (Order Cypriniformes). The results showed that sequence divergences of the CR were broadly higher than those of the cyt b (about 1.83 times). However, in considering only closely related species, CR sequence evolution was slower than that of cyt b gene (ratio of CR/cyt b is 0.78), a pattern that is found to be very common in Cypriniformes. Combined data of the cyt b and CR were used to estimate the phylogenetic relationship of the Cobitoidea by maximum parsimony, neighbor-joining, and Bayesian methods. With Cyprinus carpio and Danio rerio as outgroups, three analyses identified the same four lineages representing four subfamilies of loaches, with Botiinae on the basal-most clade. The phylogenetic relationship of the Cobitoidea was ((Catostomidae+Gyrinocheilidae)+(Botiinae+(Balitorinae+(Cobitinae+Nemacheilinae)))), which indicated that Sawada's Cobitidae (including Cobitinae and Botiinae) was not monophyletic. Our molecular phylogenetic analyses are in very close agreement with the phylogenetic results based on the morphological data proposed by Nalbant and Bianco, wherein these four subfamilies were elevated to the family level as Botiidae, Balitoridae, Cobitidae, and Nemacheilidae.

Authors+Show Affiliations

Tang Q
Institute of Hydrobiology, Chinese Academy of Sciences, Hubei, Wuhan 430072, PR China.
Liu H
No affiliation info available
Mayden R
No affiliation info available
Xiong B
No affiliation info available

MeSH

AnimalsBase CompositionBayes TheoremCypriniformesCytochromes bDNA, MitochondrialEvolution, MolecularMolecular Sequence DataPhylogenySequence Analysis, DNATime Factors

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

16213167

Citation

Tang, Qiongying, et al. "Comparison of Evolutionary Rates in the Mitochondrial DNA Cytochrome B Gene and Control Region and Their Implications for Phylogeny of the Cobitoidea (Teleostei: Cypriniformes)." Molecular Phylogenetics and Evolution, vol. 39, no. 2, 2006, pp. 347-57.
Tang Q, Liu H, Mayden R, et al. Comparison of evolutionary rates in the mitochondrial DNA cytochrome b gene and control region and their implications for phylogeny of the Cobitoidea (Teleostei: Cypriniformes). Mol Phylogenet Evol. 2006;39(2):347-57.
Tang, Q., Liu, H., Mayden, R., & Xiong, B. (2006). Comparison of evolutionary rates in the mitochondrial DNA cytochrome b gene and control region and their implications for phylogeny of the Cobitoidea (Teleostei: Cypriniformes). Molecular Phylogenetics and Evolution, 39(2), 347-57.
Tang Q, et al. Comparison of Evolutionary Rates in the Mitochondrial DNA Cytochrome B Gene and Control Region and Their Implications for Phylogeny of the Cobitoidea (Teleostei: Cypriniformes). Mol Phylogenet Evol. 2006;39(2):347-57. PubMed PMID: 16213167.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of evolutionary rates in the mitochondrial DNA cytochrome b gene and control region and their implications for phylogeny of the Cobitoidea (Teleostei: Cypriniformes). AU - Tang,Qiongying, AU - Liu,Huanzhang, AU - Mayden,Richard, AU - Xiong,Bangxi, Y1 - 2005/10/04/ PY - 2005/07/06/received PY - 2005/08/15/revised PY - 2005/08/18/accepted PY - 2005/10/11/pubmed PY - 2006/7/28/medline PY - 2005/10/11/entrez SP - 347 EP - 57 JF - Molecular phylogenetics and evolution JO - Mol Phylogenet Evol VL - 39 IS - 2 N2 - It is widely accepted that mitochondrial DNA (mtDNA) control region evolves faster than protein encoding genes with few exceptions. In the present study, we sequenced the mitochondrial cytochrome b gene (cyt b) and control region (CR) and compared their rates in 93 specimens representing 67 species of loaches and some related taxa in the Cobitoidea (Order Cypriniformes). The results showed that sequence divergences of the CR were broadly higher than those of the cyt b (about 1.83 times). However, in considering only closely related species, CR sequence evolution was slower than that of cyt b gene (ratio of CR/cyt b is 0.78), a pattern that is found to be very common in Cypriniformes. Combined data of the cyt b and CR were used to estimate the phylogenetic relationship of the Cobitoidea by maximum parsimony, neighbor-joining, and Bayesian methods. With Cyprinus carpio and Danio rerio as outgroups, three analyses identified the same four lineages representing four subfamilies of loaches, with Botiinae on the basal-most clade. The phylogenetic relationship of the Cobitoidea was ((Catostomidae+Gyrinocheilidae)+(Botiinae+(Balitorinae+(Cobitinae+Nemacheilinae)))), which indicated that Sawada's Cobitidae (including Cobitinae and Botiinae) was not monophyletic. Our molecular phylogenetic analyses are in very close agreement with the phylogenetic results based on the morphological data proposed by Nalbant and Bianco, wherein these four subfamilies were elevated to the family level as Botiidae, Balitoridae, Cobitidae, and Nemacheilidae. SN - 1055-7903 UR - https://www.unboundmedicine.com/medline/citation/16213167/Comparison_of_evolutionary_rates_in_the_mitochondrial_DNA_cytochrome_b_gene_and_control_region_and_their_implications_for_phylogeny_of_the_Cobitoidea__Teleostei:_Cypriniformes__ DB - PRIME DP - Unbound Medicine ER -